<?php

/**
 * XMPPHP: The PHP XMPP Library
 * Copyright (C) 2008  Nathanael C. Fritz
 * This file is part of SleekXMPP.
 * 
 * XMPPHP is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 * 
 * XMPPHP is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with XMPPHP; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 *
 * @category   xmpphp 
 * @package	XMPPHP
 * @author	 Nathanael C. Fritz <JID: fritzy@netflint.net>
 * @author	 Stephan Wentz <JID: stephan@jabber.wentz.it>
 * @author	 Michael Garvin <JID: gar@netflint.net>
 * @copyright  2008 Nathanael C. Fritz
 */
/** XMPPHP_XMPP 
 *
 * This file is unnecessary unless you need to connect to older, non-XMPP-compliant servers like Dreamhost's.
 * In this case, use instead of XMPPHP_XMPP, otherwise feel free to delete it.
 * The old Jabber protocol wasn't standardized, so use at your own risk.
 *
 */
require_once "XMPP.php";

class XMPPHP_XMPPOld extends XMPPHP_XMPP {

  /**
   *
   * @var string
   */
  protected $session_id;

  public function __construct($host, $port, $user, $password, $resource, $server = null, $printlog = false, $loglevel = null) {
    parent::__construct($host, $port, $user, $password, $resource, $server, $printlog, $loglevel);
    if (!$server)
      $server = $host;
    $this->stream_start = '<stream:stream to="' . $server . '" xmlns:stream="http://etherx.jabber.org/streams" xmlns="jabber:client">';
    $this->fulljid = "{$user}@{$server}/{$resource}";
  }

  /**
   * Override XMLStream's startXML
   *
   * @param parser $parser
   * @param string $name
   * @param array $attr
   */
  public function startXML($parser, $name, $attr) {
    if ($this->xml_depth == 0) {
      $this->session_id = $attr['ID'];
      $this->authenticate();
    }
    parent::startXML($parser, $name, $attr);
  }

  /**
   * Send Authenticate Info Request
   *
   */
  public function authenticate() {
    $id = $this->getId();
    $this->addidhandler($id, 'authfieldshandler');
    $this->send("<iq type='get' id='$id'><query xmlns='jabber:iq:auth'><username>{$this->user}</username></query></iq>");
  }

  /**
   * Retrieve auth fields and send auth attempt
   *
   * @param XMLObj $xml
   */
  public function authFieldsHandler($xml) {
    $id = $this->getId();
    $this->addidhandler($id, 'oldAuthResultHandler');
    if ($xml->sub('query')->hasSub('digest')) {
      $hash = sha1($this->session_id . $this->password);
      print "{$this->session_id} {$this->password}\n";
      $out = "<iq type='set' id='$id'><query xmlns='jabber:iq:auth'><username>{$this->user}</username><digest>{$hash}</digest><resource>{$this->resource}</resource></query></iq>";
    } else {
      $out = "<iq type='set' id='$id'><query xmlns='jabber:iq:auth'><username>{$this->user}</username><password>{$this->password}</password><resource>{$this->resource}</resource></query></iq>";
    }
    $this->send($out);
  }

  /**
   * Determine authenticated or failure
   *
   * @param XMLObj $xml
   */
  public function oldAuthResultHandler($xml) {
    if ($xml->attrs['type'] != 'result') {
      $this->log->log("Auth failed!", XMPPHP_Log::LEVEL_ERROR);
      $this->disconnect();
      throw new XMPPHP_Exception('Auth failed!');
    } else {
      $this->log->log("Session started");
      $this->event('session_start');
    }
  }

}

?>
